A Universal Alphabet, Grammar, and Language: Comprising a Scientific Classification of The Radical Elements of Discourse and Illustrative Translations From The Holy Scriptures and The Principal British Classics; To Which Is Added a Dictionary of The Language (London and Glassgow: R. Griffin and Co., ca. 1856), by George Edmonds

A Universal Alphabet, Grammar, and Language: Comprising a Scientific Classification of The Radical Elements of Discourse and Illustrative Translations From The Holy Scriptures and The Principal British Classics; To Which Is Added a Dictionary of The Language (London and Glassgow: R. Griffin and Co., ca. 1856), by George Edmonds

The Standard Course of Esperanto: Being the "Popular Educator" Lessons, Based on Dr. Zamenhof's "Ekzercaro", With Notes and Additions (London et al.: Cassell and Co., 1907), by George W. Bullen, contrib. by L. L. Zamenhof

The Standard Course of Esperanto: Being the "Popular Educator" Lessons, Based on Dr. Zamenhof's "Ekzercaro", With Notes and Additions (London et al.: Cassell and Co., 1907), by George W. Bullen, contrib. by L. L. Zamenhof

The Standard Course of Esperanto: Being the "Popular Educator" Lessons, Based on Dr. Zamenhof's "Ekzercaro", With Notes and Additions (London et al.: Cassell and Co., 1907), by George W. Bullen, contrib. by L. L. Zamenhof